A Radiologic and clinicopathologic evaluation of invasive thymoma in a domestic shorthair cat: Case Report

Tyhmoma in a cat

Abstract

A 5-year-old, female spayed, domestic shorthair cat was referred to University hospital, Veterinary Faculty, Internal Medicine Small Animal Clinic according to owner anamnesis the main complaints were respiratory distress accompanying with variable appetite, weight loss and sometimes cough crisis. In the preliminary examination, abnormal lung sound and dyspnea was achieved in thoracic auscultation. Thoracic radiographs showed a mass in the cranial mediastinum causing caudal displacement of the cardiac silhouette and cranial lung lobes. There was no evidence of metastatic disease. Routine blood work were normal and virological examination feline leukaemia virus (FeLV) and feline immunodeficiency virus (FIV); the tests for both viruses were negative. The cytological examination of fine needle aspiration of the chest cavity and the diagnosis of thymoma but couldn't enough for diagnose. Al final surgically resection was made and mass is diagnosed thymoma Type B1  according to Human WHO classification by examination of histopathology and immunohistochemistry.